Modify UserGuide

docs/UserGuide.md

@@ -17,13 +17,16 @@ It's optimized for use via a Command Line Interface (CLI) while still having the
 
 ## Quick start
 
-1. Ensure you have Java `11` or above installed in your Computer.
+1. Ensure you have Java `11` or above installed in your Computer. [How to check](https://www.baeldung.com/java-check-is-installed)
+    - If you do not have Java `11`, download it from [here](https://www.oracle.com/java/technologies/javase/jdk11-archive-downloads.html)
+    - Help with configuring correct Java version: [Windows](https://www.happycoders.eu/java/how-to-switch-multiple-java-versions-windows/) | [MacOS](https://stackoverflow.com/questions/21964709/how-to-set-or-change-the-default-java-jdk-version-on-macos) | [Linux](https://www.baeldung.com/linux/java-choose-default-version)
+    - For Mac users, you are recommended to follow this [guide](https://nus-cs2103-ay2324s2.github.io/website/admin/programmingLanguages.html#programming-language) if you face issues running the `tether.jar` file, notably unreadable or garbled text in the application.
 
 1. Download the latest `tether.jar` from [here](https://github.com/AY2324S2-CS2103T-F11-3/tp/releases/tag/v1.3).
 
-1. Copy the file to the folder you want to use as the _home folder_ for your Tether.
+1. Copy the downloaded file to the folder you want to use as the _home folder_ for Tether.
 
-1. Open a command terminal, `cd` into the folder you put the jar file in, and use the `java -jar tether.jar`
+1. Double click the `tether.jar` file. Alternatively, for users with command line experience, open up your favourite command terminal, `cd` into the folder you put the jar file in, and use the `java -jar tether.jar`
    command to run the application.<br><br>
    A GUI similar to the below should appear in a few seconds. Note how the app contains some sample data.<br>
 
@@ -249,25 +252,28 @@ To find a person or persons, execute `find_[email/name/phone] [keyword 1]...` su
 
 Assume that the above list reflects the current data present in Tether for the upcoming example commands.
 
-Multiple matching entries:
+**Multiple matching entries:**
 Executing `find_name Alice` will list all entries with the name `Alice` even if it is not a full name as stated earlier as seen below:
 
 ![img.png](images/find-command/findnamesuccess.png)
 
-Keyword has to be complete:
+**Keyword has to be complete:**
 Executing `find_name Ali` will not display any matching entries even though `Ali` is a substring of `Alice`.
 `0 persons listed!` is the response for such cases of no matching entries as seen below:
 
 ![img.png](images/find-command/nomatches.png)
 
-Nonsense keyword inputs:
+**Nonsense keyword inputs:**
 Executing `find_email 123456` will likewise result in no matching entries. Not that while the value `123456` is not a valid `email`, the command still accepts it and just displays no matching entries. Result display is similar to above
 
-Multiple Keywords:
+**Multiple Keywords:**
 Executing `find_phone 123 23456` will display the entries that have `123` or `23456` as their phone numbers
 
 ![img.png](images/find-command/multiplekeywords.png)
 
+**Notes**:
+* The `find` command queries the original unfiltered list of persons, meaning that `find` commands cannot be stacked.
+
 ### Filtering persons by status:
 
 What if you have no information about an applicant or interviewer's name, phone or email though? Fret not, for the `filter_by_status` command enables you to narrow down the current list of persons on the basis of their current status.